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Test Coverage

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May 1, 2024 Updated June 22, 2025 20 minute read

An Introduction to Test Coverage

Test coverage is a fundamental concept in software development and quality assurance. At a high level, it refers to a set of metrics used to determine the extent to which a software application's code or functionalities have been exercised by a suite of tests. Essentially, it helps answer the question: "How much of our software are we actually testing?" This measurement is crucial for gauging the thoroughness of testing efforts and identifying areas that might be harboring undiscovered defects.

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Reading list

We've selected eight books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Test Coverage.
Covers all aspects of software testing and quality assurance, including test coverage, and provides practical guidance for both testers and developers.
Covers the TMap approach to software testing, which risk-based approach that focuses on testing the most important parts of a software system.
Covers all aspects of software test automation, including test coverage, and provides practical guidance for both testers and developers.
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